21567546

素因数分解:

$2^1\times 3^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:71

約数の個数: 240

約数和(自身を含む): 69521760

約数和(自身を除く): 47954214

約数列:

[1, 2, 3, 6, 7, 9, 11, 13, 14, 18, 19, 21, 22, 26, 27, 33, 38, 39, 42, 49, 54, 57, 63, 66, 77, 78, 81, 91, 98, 99, 114, 117, 126, 133, 143, 147, 154, 162, 171, 182, 189, 198, 209, 231, 234, 247, 266, 273, 286, 294, 297, 342, 351, 378, 399, 418, 429, 441, 462, 494, 513, 539, 546, 567, 594, 627, 637, 693, 702, 741, 798, 819, 858, 882, 891, 931, 1001, 1026, 1053, 1078, 1134, 1197, 1254, 1274, 1287, 1323, 1386, 1463, 1482, 1539, 1617, 1638, 1729, 1782, 1862, 1881, 1911, 2002, 2079, 2106, 2223, 2394, 2457, 2574, 2646, 2717, 2793, 2926, 3003, 3078, 3234, 3458, 3591, 3762, 3822, 3861, 3969, 4158, 4389, 4446, 4851, 4914, 5187, 5434, 5586, 5643, 5733, 6006, 6237, 6669, 7007, 7182, 7371, 7722, 7938, 8151, 8379, 8778, 9009, 9702, 10241, 10374, 10773, 11286, 11466, 11583, 12103, 12474, 13167, 13338, 14014, 14553, 14742, 15561, 16302, 16758, 16929, 17199, 18018, 19019, 20007, 20482, 21021, 21546, 23166, 24206, 24453, 25137, 26334, 27027, 29106, 30723, 31122, 33858, 34398, 36309, 38038, 39501, 40014, 42042, 43659, 46683, 48906, 50274, 51597, 54054, 57057, 61446, 63063, 72618, 73359, 75411, 79002, 81081, 87318, 92169, 93366, 103194, 108927, 114114, 118503, 126126, 133133, 140049, 146718, 150822, 162162, 171171, 184338, 189189, 217854, 220077, 237006, 266266, 276507, 280098, 326781, 342342, 378378, 399399, 440154, 513513, 553014, 567567, 653562, 798798, 829521, 980343, 1027026, 1135134, 1198197, 1540539, 1659042, 1960686, 2396394, 3081078, 3594591, 7189182, 10783773, 21567546]

約数ペア:

[(1, 21567546), (2, 10783773), (3, 7189182), (6, 3594591), (7, 3081078), (9, 2396394), (11, 1960686), (13, 1659042), (14, 1540539), (18, 1198197), (19, 1135134), (21, 1027026), (22, 980343), (26, 829521), (27, 798798), (33, 653562), (38, 567567), (39, 553014), (42, 513513), (49, 440154), (54, 399399), (57, 378378), (63, 342342), (66, 326781), (77, 280098), (78, 276507), (81, 266266), (91, 237006), (98, 220077), (99, 217854), (114, 189189), (117, 184338), (126, 171171), (133, 162162), (143, 150822), (147, 146718), (154, 140049), (162, 133133), (171, 126126), (182, 118503), (189, 114114), (198, 108927), (209, 103194), (231, 93366), (234, 92169), (247, 87318), (266, 81081), (273, 79002), (286, 75411), (294, 73359), (297, 72618), (342, 63063), (351, 61446), (378, 57057), (399, 54054), (418, 51597), (429, 50274), (441, 48906), (462, 46683), (494, 43659), (513, 42042), (539, 40014), (546, 39501), (567, 38038), (594, 36309), (627, 34398), (637, 33858), (693, 31122), (702, 30723), (741, 29106), (798, 27027), (819, 26334), (858, 25137), (882, 24453), (891, 24206), (931, 23166), (1001, 21546), (1026, 21021), (1053, 20482), (1078, 20007), (1134, 19019), (1197, 18018), (1254, 17199), (1274, 16929), (1287, 16758), (1323, 16302), (1386, 15561), (1463, 14742), (1482, 14553), (1539, 14014), (1617, 13338), (1638, 13167), (1729, 12474), (1782, 12103), (1862, 11583), (1881, 11466), (1911, 11286), (2002, 10773), (2079, 10374), (2106, 10241), (2223, 9702), (2394, 9009), (2457, 8778), (2574, 8379), (2646, 8151), (2717, 7938), (2793, 7722), (2926, 7371), (3003, 7182), (3078, 7007), (3234, 6669), (3458, 6237), (3591, 6006), (3762, 5733), (3822, 5643), (3861, 5586), (3969, 5434), (4158, 5187), (4389, 4914), (4446, 4851)]